Patek Philippe AL-30-660-S-C-FUS

Caliber AL-30-660-S-C-FUS is a self-winding mechanical movement manufactured by Patek Philippe. It measures 31 mm in diameter and 6.6 mm thick, beats at 28,800 vph, and delivers 42 to 52 hours of power reserve with 52 jewels. The movement features an alarm function with 24-hour indicator, dual time zones with day/night display, and a date complication. Notable innovations include the Gyromax balance and Spiromax balance spring, both bearing the Patek Philippe Seal hallmark.